.btn-group{
    margin-top:50px;

    .detail-btn{
        float:right;
        width: 150px;
        height: 40px;
        margin-left: 30px;
        color: #fff;
        font-size: 18px;

        &.purchase-btn{
            background-color: #ff6700;
        }

        &.add-to-cart-btn{
            background-color: #f20;
        }
    }
}